I was the opposite to you. (Programming|Learning) Perl did nothing for me. I own both, but have read neither fully. The first book on Perl that I did fully read, several times, is The Perl Cookbook. Absolutely fantastic for people (such as myself) who came to Perl from a Awk/C/Shell background.

Not books, but there's a huge amount of help available locally in perldoc, either as html, your shell or perldoc.perl.org.